The Sages taught: What is the meaning when the verse states after the sacrifice of the meal-offering: “And he shall make her drink the water” (Numbers 5:27)? But isn’t it already stated: “And he shall make the woman drink the water of bitterness that causes the curse” (Numbers 5:24)? The baraita answers: The repetition teaches that if the scroll was already erased and then the woman says: I will not drink, she is forced [me’arerin] to drink against her will. This is the statement of Rabbi Akiva.

Rabbi Shimon says: What is the meaning when the verse states: “And the priest shall take a handful of the meal-offering, as the memorial part of it, and burn it upon the altar, and afterward he shall make the woman drink the water” (Numbers 5:26)? But isn’t it already stated previously: “And he shall make the woman drink” (Numbers 5:24)? Rather, this verse indicates that the sota is given the bitter water to drink only after all the actions that are stated above are performed, i.e., erasing the scroll, sacrificing the meal-offering, and administering the oath. Therefore, this verse teaches that three matters preclude her from drinking: She does not drink until the handful is sacrificed, and until the scroll is erased, and until she accepts the oath upon herself.

The Gemara elaborates: She does not drink until the handful is sacrificed. Rabbi Shimon conforms to his line of reasoning stated earlier, as he says that the priest sacrifices her meal-offering and afterward forces her to drink.

The Gemara questions the second condition: She does not drink until the scroll is erased. Why does the baraita need to state this? But what could he give her to drink if the scroll was not yet erased into the water? Rav Ashi says: No, this halakha is necessary for an instance where the scroll was erased, but the impression of the ink is still discernible on the parchment. The woman does not drink until the scroll is totally erased.

The Gemara discusses the third condition: She does not drink until she accepts the oath upon herself. One might infer from this statement that it is only that she does not drink before she accepts the oath; however, the scroll is written for her before she accepts the oath. But didn’t Rava say: With regard to a scroll of a sota that was written before she accepted the oath upon herself, whoever wrote it did nothing, and the scroll is rendered invalid. The Gemara responds: This was cited for no reason, as in fact the scroll is not even written before she accepts the oath upon herself, and nothing should be inferred.

The Gemara asks: With regard to what do the Rabbis and Rabbi Shimon disagree in the mishna? The Gemara answers: Three verses are written which pertain to drinking the bitter water: The first occurrence of the term is in the verse: “And he shall make the woman drink” (Numbers 5:24); the second: “And afterward he shall make the woman drink the water” (Numbers 5:26); and the last occurrence of the term is in the verse: “And he shall make her drink” (Numbers 5:27).

The Rabbis hold that the first occurrence of the term: “And he shall make the woman drink,” is written to teach the halakha itself, i.e., that the priest first forces her to drink and afterward sacrifices her meal-offering. The second instance: “And afterward he shall make the woman drink,” is necessary to teach that as long as the impression of the writing is still discernible, the sota is not given the bitter water to drink. The third verse, the last occurrence of the term: “And he shall make her drink,” teaches that if the scroll was erased and then the woman says: I will not drink, she is forced to drink against her will.

And Rabbi Shimon holds that the second verse: “And afterward he shall make the woman drink the water” (Numbers 5:26), is written to teach the halakha itself, i.e., that the priest first sacrifices her meal-offering and afterward forces her to drink. The first occurrence of the term: “And he shall make the woman drink,” teaches that if he forced her to drink and only afterward sacrificed her meal-offering, the offering is nevertheless valid. The last occurrence of the term: “And he shall make her drink,” teaches that if the scroll was erased and then she said: I will not drink, she is forced to drink against her will.

The Gemara explains the Rabbis’ opinion: And the Rabbis would respond to Rabbi Shimon that the verse does not begin the discussion with a halakha that is applicable only after the fact, and therefore the initial mention of the drinking is referring to the proper time for the ritual.

The Gemara asks: But does Rabbi Akiva in fact hold that the woman is forced to drink against her will? But isn’t it taught in a baraita (Tosefta 2:3) that Rabbi Yehuda says: A hook [kelabus] made of iron is forcibly placed into her mouth, so that if the scroll was erased and she said: I will not drink, she is forced to drink against her will. Rabbi Akiva said: It is not necessary to force her to drink. Don’t we need to force her to drink the water only in order to evaluate her fidelity? And isn’t she established as having been evaluated when she refuses to drink, as she is essentially admitting her guilt? Rather, Rabbi Akiva’s statement should be understood as follows: Until the handful is sacrificed she can retract her decision to drink the bitter water; however, once the handful is sacrificed she cannot retract her decision to drink.

The Gemara asks: But according to your reasoning in explanation of Rabbi Akiva’s statement, this explanation itself should pose a difficulty for you. Why can’t she retract her decision once the handful is sacrificed? And isn’t she established as having been evaluated when she refuses to drink?

The Gemara answers: This is not difficult; this case, where she is forced to drink, is referring to a situation where she retracts her decision to drink due to fear, as her refusal is not viewed as an admission of guilt, and it is possible that if she drinks she will be found undefiled. And that case, where she does not drink, is referring to a situation where she retracts her decision in a state of good health. Since she does not appear to be afraid, her refusal is viewed as an admission of guilt.

And this is what Rabbi Akiva is saying: In any case where she retracts her decision to drink in a state of good health, she does not drink at all. With regard to a sota who retracts her decision due to fear, if she retracts her decision before the handful is sacrificed, when the scroll has not yet been erased; or even if the scroll was already erased, since the priests acted incorrectly when they erased it beforehand; she can retract her decision. Once the handful is sacrificed, in which case the priests acted correctly when they erased the scroll, she cannot retract her decision, and she is forced to drink against her will.